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Update app.py
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app.py
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import gradio as gr
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from transformers import MarianMTModel, MarianTokenizer
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#
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# Recharger modèle si changé
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global tokenizer, model
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if model_name != model.name_or_path:
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tokenizer = MarianTokenizer.from_pretrained(model_name)
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model = MarianMTModel.from_pretrained(model_name)
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# Traduction
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batch = tokenizer([text], return_tensors="pt", padding=True)
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gen = model.generate(**batch)
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translated = tokenizer.batch_decode(gen, skip_special_tokens=True)[0]
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return translated
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# Interface Gradio
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iface = gr.Interface(
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fn=translate,
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inputs=[
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gr.Textbox(lines=2, placeholder="Tapez le texte ici..."),
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gr.Dropdown(["fr", "en"], label="Langue cible")
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],
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outputs="text",
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title="MyTranslator",
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description="
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)
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iface.launch()
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import gradio as gr
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from transformers import MarianMTModel, MarianTokenizer
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from langdetect import detect
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# Liste des modèles MarianMT que l'on veut supporter
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LANG_MODELS = {
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("en", "fr"): "Helsinki-NLP/opus-mt-en-fr",
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("fr", "en"): "Helsinki-NLP/opus-mt-fr-en",
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("en", "es"): "Helsinki-NLP/opus-mt-en-es",
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("es", "en"): "Helsinki-NLP/opus-mt-es-en",
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("en", "de"): "Helsinki-NLP/opus-mt-en-de",
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("de", "en"): "Helsinki-NLP/opus-mt-de-en",
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("en", "it"): "Helsinki-NLP/opus-mt-en-it",
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("it", "en"): "Helsinki-NLP/opus-mt-it-en",
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("fr", "es"): "Helsinki-NLP/opus-mt-fr-es",
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("es", "fr"): "Helsinki-NLP/opus-mt-es-fr",
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("fr", "de"): "Helsinki-NLP/opus-mt-fr-de",
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("de", "fr"): "Helsinki-NLP/opus-mt-de-fr",
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# 💡 tu peux ajouter ici toutes les paires dispo sur Hugging Face
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}
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# Cache modèle/tokenizer pour éviter de recharger à chaque fois
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model_cache = {}
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def get_model(src, tgt):
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"""Charge le bon modèle selon la paire de langues"""
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if (src, tgt) not in LANG_MODELS:
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return None, None
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model_name = LANG_MODELS[(src, tgt)]
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if model_name not in model_cache:
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tokenizer = MarianTokenizer.from_pretrained(model_name)
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model = MarianMTModel.from_pretrained(model_name)
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model_cache[model_name] = (tokenizer, model)
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return model_cache[model_name]
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def translate(text, target_lang):
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# Détection automatique de la langue source
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try:
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source_lang = detect(text)
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except:
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return "Impossible de détecter la langue."
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if source_lang == target_lang:
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return "La langue source et cible sont identiques."
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tokenizer, model = get_model(source_lang, target_lang)
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if tokenizer is None:
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return f"Traduction {source_lang} → {target_lang} non supportée."
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batch = tokenizer([text], return_tensors="pt", padding=True)
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gen = model.generate(**batch)
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translated = tokenizer.batch_decode(gen, skip_special_tokens=True)[0]
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return translated
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iface = gr.Interface(
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fn=translate,
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inputs=[
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gr.Textbox(lines=2, placeholder="Tapez le texte ici..."),
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gr.Dropdown(["fr", "en", "es", "de", "it"], label="Langue cible")
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],
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outputs="text",
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title="MyTranslator",
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description="Traducteur multi-langues avec détection automatique."
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)
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iface.launch()
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